Search results

I have just done an iron-stain removal with ascorbic acid, which meant that Cl had been at 0 for a while, and the water had become somewhat milky cloudy, but not terrible. I started shocking noon the day before yesterday, bringing FC to 24 and maintaining it there through yesterday. So, this...

I have a yellowish stain on my Krystal Krete pool. I'm fairly certain it's stain, not algae because: -- it doesn't scrub off -- it has responded to a stain-analysis test (responds to iron) -- stain-removal products have helped somewhat in the past Each time I've treated I've used Pinch-A-Penny...

I have a pool service that treats our pool every Wednesday. For some time now, the water is crystal clear until he adds chlorine (muriatic) on Wednesday AM. Then, almost immediately, the water becomes very cloudy. By about 24-36 hours after that, it's completely cleared again and will remain...